Display panel and display device
By setting a first color resist with a convex mirror structure and a first photoresist with a high refractive index in the edge area of the display panel, the problem of inconsistent display effect in the edge area is solved, achieving a display effect consistent with the center area and improving the overall performance of the display panel.
Patent Information
- Application Number
- CN202210903013.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2022-07-29
- Publication Date
- 2026-02-27
- Estimated Expiration
- 2042-07-29
AI Technical Summary
The existing display panels exhibit inconsistent display effects between the edge and center areas, resulting in a decrease in overall performance.
A first color resist with a convex mirror structure is set in the pixel opening of the black matrix layer in the edge area of the display panel, and a first photoresist with a light refractive index higher than that of the color resist is used. The structural design of different color resists is combined to improve light transmittance and emission effect.
It effectively improves the display effect in the edge area, making it consistent with the center area, and enhances the overall performance of the display panel.
Smart Images

Figure CN115274984B_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of display panel manufacturing, and in particular to a display panel and a display device. BACKGROUND
[0002] With the development of display panel manufacturing technology, people have put forward higher requirements on the display effect and comprehensive performance of display panels and display devices.
[0003] In the modern communication industry, the market demand for various display products such as mobile phones, televisions, tablet computers and digital camera products is increasing. With the continuous increase in the size of display panels and the demand for folding plane technology, the requirements for the optical performance of the panel are further improved. In the prior art, in order to reduce the problem of poor display effect at the edge of a large-size display panel, the display panel is usually prepared by using a polless panel (PLP) technology, which uses a black matrix layer to shield in the non-pixel area, and uses color resistance layers of different colors in the pixel area to achieve the purpose of improving the display effect of the display panel. When the above-mentioned PLP technology is used for preparation, the light shielding effect of the black matrix layer corresponding to different colors of color resistance is different, for example, the green pixel is most severely shielded by the black matrix layer, and its brightness decay is also the fastest, while the decay of other colors is smaller, ultimately causing the display effect of the edge region of the display panel to be different from that of the center region, such as the edge region of the display panel corresponding to the display of pink color, thereby reducing the comprehensive display effect of the display panel.
[0004] In summary, in the existing display panel, the display effect of the edge region of the display panel is different from that of the center region, thereby causing the overall consistency of the display effect of the display panel, which is not conducive to the further improvement of the comprehensive performance of the display panel. SUMMARY
[0005] The embodiments of the present application provide a display panel and a display device. The display panel and the display device effectively improve the problem that the display effect of the edge region of the display panel is inconsistent with that of the center region, and the display effect of the panel is poor.
[0006] To solve the above technical problems, the embodiments of the present application provide a display panel and a display device, which comprises a first pixel region arranged at the edge of the display panel, comprising:
[0007] a black matrix layer, the black matrix layer comprising a plurality of pixel openings arranged in a pattern;
[0008] a color resistance, the color resistance comprising a plurality of color resistances of different colors, each color resistance being arranged in the pixel opening; and
[0009] A first photoresist is disposed on the black matrix layer and covers the color resist;
[0010] The color resist further comprises a first color color resist, a side of the first color color resist away from the black matrix layer is provided as a convex mirror structure, and a light refraction index of the first photoresist is greater than a light refraction index of the first color color resist.
[0011] According to an embodiment of the present application, the light refraction index of the first color color resist is set to 1.4-1.5, and the light refraction index of the first photoresist is set to 1.6-1.7.
[0012] According to an embodiment of the present application, a height of the first color color resist is greater than a height of the black matrix layer, and the convex mirror structure comprises a filling portion and a convex portion;
[0013] The filling portion is disposed in a corresponding pixel opening, and the convex portion is disposed on the filling portion.
[0014] According to an embodiment of the present application, the convex portion is provided as a spherical convex, and a height of the spherical convex portion is set to 0.25um-0.5um.
[0015] According to an embodiment of the present application, the color resist further comprises a second color color resist and a third color color resist, the first color color resist, the second color color resist and the third color color resist are sequentially disposed in the pixel opening;
[0016] The second color color resist has the same structure as the third color color resist, and a side of the second color color resist away from the black matrix layer is provided as a planar structure.
[0017] According to an embodiment of the present application, heights of the second color color resist and the third color color resist are greater than a height of the black matrix layer.
[0018] A height between an upper surface of the second color color resist and an upper surface of the black matrix layer is 1.5um-2.0um.
[0019] According to an embodiment of the present application, an opening radius of a pixel opening corresponding to the first color color resist is less than an opening radius of a pixel opening corresponding to the second color color resist, and the opening radius of the pixel opening corresponding to the second color color resist is less than an opening radius of a pixel opening corresponding to the third color.
[0020] According to an embodiment of the present application, the display panel further comprises a second pixel region, the second pixel region is disposed on a side of the first pixel region;
[0021] The second pixel region also includes a plurality of color resistors of different colors, each of which is arranged in a pixel opening in the second pixel region, and each of which has the same structure.
[0022] According to an embodiment of the present application, the plurality of color resistors of different colors are arranged in a trapezoidal structure.
[0023] According to a second aspect of the embodiment of the present application, a display device is also provided, comprising the display panel provided in the embodiment of the present application.
[0024] The embodiment of the present application has the following beneficial effects: compared with the prior art, the embodiment of the present application provides a display panel and a display device. The display panel comprises a first pixel region arranged at the edge of the panel, the panel further comprises a black matrix layer, the black matrix layer comprises a plurality of pixel openings arranged in a pattern, color resistors, each of which is arranged in a pixel opening, and a first photoresistor, the first photoresistor is arranged on the black matrix layer, wherein the color resistors further comprise a first color resistor, the first color resistor is arranged in a convex mirror structure, and the refractive index of the first photoresistor is greater than the refractive index of the first color resistor. In the embodiment of the present application, by changing the structure of the first color resistor and arranging the first photoresistor with different refractive indexes on the first color resistor, the effect of different colors in the panel in the first pixel region is effectively reduced, and the display effect in the edge region of the panel is ensured to be the same as the display effect in the center region of the panel, so as to improve the comprehensive performance of the panel. BRIEF DESCRIPTION OF DRAWINGS
[0025] In order to more clearly illustrate the technical solutions in the embodiments or the prior art, the following will briefly introduce the drawings needed to be used in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the application, and other drawings can also be obtained by those skilled in the art without any creative effort.
[0026] Figure 1 A planar structure schematic diagram of a display panel provided in the embodiment of the present application is provided.
[0027] Figure 2 A film layer structure schematic diagram of the display panel in the first display region provided in the embodiment of the present application is provided.
[0028] Figure 3 A film layer structure schematic diagram corresponding to the array substrate provided in the embodiment of the present application is provided.
[0029] Figure 4 A film layer structure schematic diagram of a second array substrate provided in the embodiment of the present application is provided.
[0030] Figure 5A film layer structure schematic diagram corresponding to the display panel preparation process provided in the embodiment of the present application is shown in FIG. 1.
[0031] Figure 6 A film layer structure schematic diagram corresponding to another preparation process provided in the embodiment of the present application is shown in FIG. 2.
[0032] Figure 7 A film layer structure schematic diagram corresponding to the display panel provided in the embodiment of the present application is shown in FIG. 3. DETAILED DESCRIPTION
[0033] The following disclosure provides different implementations or examples to realize different structures of the present application, with reference to the drawings in the embodiments of the present application. In order to simplify the present application, the components and settings of specific examples are described below. In addition, the present application provides various specific examples of processes and materials, which can be realized by those skilled in the art. All other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.
[0034] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implying the number of technical features indicated.
[0035] With the continuous development of display panel preparation technology, people have put forward higher requirements on the performance and display effect of display panels and display devices.
[0036] For large-size display panels, in the center of the light-emitting display area of the panel, it has good light-emitting and display effect, while in the edge area of the large-size panel, such as the position close to the frame of the folding curved panel, there are certain display problems, such as the panel in the edge area has a problem of pink around when light-emitting display is performed, thereby reducing the display effect of the display panel.
[0037] The embodiment of the present application provides a display panel and a display device to effectively improve the problem that the display effect of the display panel at the edge position is not ideal.
[0038] As Figure 1As shown, Figure 1 A schematic diagram of a planar structure of a display panel is provided in an embodiment of the present application. Specifically, the display panel can include a plurality of display regions, such as a first display region 12 and a second display region 11. The first display region 12 can be disposed at least on one side of the second display region 11. In an embodiment of the present application, the first display region 12 and the second display region 11 both correspond to a light-emitting pixel region of the display panel, such as the first display region 12 corresponding to a first pixel region.
[0039] In an embodiment of the present application, the first display region 12 is disposed at an edge position of the display panel 10, such as a peripheral edge of the display panel 10, or is disposed only at opposite edge positions of the display panel 10, which is not specifically limited here.
[0040] In an embodiment of the present application, the distance from the first display region 12 to the edge of the display panel can be set to be less than 5 mm.
[0041] Further, as shown, Figure 2 As shown, Figure 2 A schematic diagram of a film layer structure in the first display region of the display panel is provided in an embodiment of the present application. Specifically, in the first display region 12, the display panel includes a substrate 101, an array substrate 102, an electrode layer 104, a light-emitting layer 110, and a planarization layer 105.
[0042] Specifically, the array substrate 102 is disposed on the substrate 101. In an embodiment of the present application, the array substrate 102 is a thin-film transistor array substrate, and a plurality of thin-film transistors are disposed in the array substrate 102 to control and drive the light-emitting functional film layer.
[0043] Meanwhile, the electrode layer 104 is disposed on the array substrate 102, and the light-emitting layer 110 is disposed on the electrode layer 104, so as to be electrically connected to the thin-film transistor in the bottom array substrate through the electrode layer 104. Further, the planarization layer 105 is disposed on the electrode layer 104, and the planarization layer 105 completely covers the electrode layer 104.
[0044] In an embodiment of the present application, the above-mentioned substrate 101 can be disposed as a multi-film layer stacked structure, such as a stacked structure of an organic layer and an inorganic layer, so as to improve the support and buffering effect on other film layers. Further, the array substrate 102, the electrode layer 104, and the light-emitting layer 110 and the planarization layer 105 can all be prepared according to the existing device structure and process, which is not described here.
[0045] Further, the display panel provided in the embodiments of the present application further comprises a black matrix layer 107. The black matrix layer 107 is arranged on the planarization layer 105, and when arranged, the black matrix layer 107 can be arranged on the planarization layer 105 in a patterned manner.
[0046] Specifically, the black matrix layer 107 can comprise a plurality of opening regions and light shielding regions. The opening regions can be pixel openings, and the light shielding regions can correspond to light blocking portions of the black matrix layer 107. Light can be transmitted from each pixel opening region, but cannot be transmitted in the light shielding regions.
[0047] In the embodiments of the present application, the pixel openings are taken as examples of a first pixel opening 31, a second pixel opening 32, and a third pixel opening 33 arranged in a patterned manner, and a light shielding region is arranged between two adjacent pixel openings.
[0048] Further, the display panel further comprises color resistances, which are arranged in each pixel opening. The color resistances comprise a plurality of color resistances of different colors. In the embodiments of the present application, the color resistances are taken as examples of a first color resistance 211, a second color resistance 212, and a third color resistance 213.
[0049] In the embodiments of the present application, the color resistances described above can be color resistances of different colors, and the first color resistance 211 is arranged in the first pixel opening 31, the second color resistance 212 is arranged in the second pixel opening 32, and the third color resistance 213 is arranged in the third pixel opening 33. Thus, the first color resistance, the second color resistance, and the third color resistance form the color resistances in the embodiments of the present application.
[0050] Preferably, the color resistances of different colors described above can be set according to actual needs. The color resistances can be set as color resistances of two colors or color resistances of three colors. Specifically, the color resistances are set according to corresponding light emitting pixels of actual products, which will not be described herein.
[0051] In the following embodiments, the first color resistance 211 is taken as an example of a green color resistance, the second color resistance 212 is taken as an example of a blue color resistance, and the third color resistance 213 is taken as an example of a red color resistance.
[0052] Specifically, when arranged, the green color resistance corresponding to the first color resistance 211 is arranged in a convex mirror structure. The convex mirror structure can be similar to a convex lens structure, and the convex mirror structure is arranged on a side away from light emission.
[0053] In the embodiment of the present application, the first color color resist 211 can include a filling portion 2112 and a protruding portion 2111. The filling portion 2112 is arranged in the first pixel opening 31, and when filling the first pixel opening 31, the filling portion 2112 completely fills the pixel opening, and the filling height of the filling portion 2112 can be greater than the height of the black matrix layer 107. In this way, the filling portion 2112 will exceed the black matrix layer 107 by a certain height, and when light is transmitted from the filling portion 2112, the light can be transmitted to the maximum extent, thereby improving the light transmittance.
[0054] Meanwhile, the protruding portion 2111 is connected with the filling portion 2112, and the protruding portion 2111 is arranged above the filling portion 2112. After light is emitted from the light-emitting layer 110, it successively transmits through each film layer and enters the area corresponding to the first pixel opening 31, and successively transmits through the filling portion 2112 and the protruding portion 2111 and passes out of the first color color resist 211.
[0055] In the embodiment of the present application, when the protruding portion 2111 is arranged, the protruding portion 2111 can be arranged in an arc-shaped protrusion, a spherical protrusion or the like. In the following embodiment, the protruding portion 2111 is taken as an example to be described.
[0056] The protruding direction of the spherical protrusion is the same as the direction of the emitted light of the light-emitting layer 110. The surface of the spherical protrusion is a gently transitioned protruding surface.
[0057] In the embodiment of the present application, the height between the protruding portion 2111 and the upper surface of the black matrix layer 107 is H1, wherein the height H1 can be arranged as 1.0 um-2.0 um, and preferably, the height H1 is arranged as 1.8 um. So as to ensure that the light can be transmitted from the color resist to the outside as much as possible.
[0058] Further, when the protruding portion 2111 is arranged, the height between the top of the protruding portion 2111 and the upper surface of the black matrix layer 107 can be arranged as 0.25 um-0.5 um, and preferably, the height is arranged as 0.35 um. So as to ensure the light emission effect when the light is emitted from the interface of the spherical protrusion.
[0059] In the embodiment of the present application, when the protruding portion 2111 is arranged, the edge width of the protruding portion 2111 can be greater than the width of the corresponding first pixel opening 31, for example, the width of the cross section of the protruding portion 2111 can be 0.8 um greater than the opening width of the first pixel opening 31.
[0060] Further, the protruding part 2111 can also be provided as other shapes of convex mirror structures, such as an arched structure, which will not be described herein. By providing one end of the first color color resist 211 as a protruding convex mirror structure, the light exiting effect can be effectively improved.
[0061] In the embodiments of the present application, when the second color color resist 212 and the third color color resist 213 are provided, the second color color resist 212 corresponding to the blue color resist and the third color color resist 213 corresponding to the red color resist can be provided as the same structure, such as both being provided as a planar structure. That is, the upper surfaces of the second color color resist 212 and the third color color resist 213 are both provided as a horizontal plane structure, which can be parallel to the upper surface of the black matrix layer 107.
[0062] Specifically, when the second color color resist 212 and the third color color resist 213 are provided, the second color color resist 212 is provided in the second pixel opening 32, and the third color color resist 213 is provided in the third pixel opening 33. When provided, the height of the second color color resist 212 and the third color color resist 213 is greater than the thickness of the black matrix layer 107.
[0063] In the embodiments of the present application, the height of the second color color resist 212 and the third color color resist 213 beyond the upper surface of the black matrix layer 107 is H2, and specifically, the height H2 is provided as 1.5um-2.0um. Preferably, the height H2 is provided as 1.6um.
[0064] Specifically, the width of the second color color resist 212 and the third color color resist 213 is greater than the opening diameter of the corresponding pixel opening. Thus, the effect of the color resist of different colors on the light can be effectively ensured.
[0065] Meanwhile, the height of the first color color resist 211 can be greater than the second color color resist 212 and the third color color resist 213. In the embodiments of the present application, when the pixel openings corresponding to the color resist of different colors are provided, the sizes of the color resist of different colors are different. Specifically, the opening radius of the first pixel opening 31 corresponding to the first color color resist 211 is smaller than the opening radius of the third pixel opening 33 corresponding to the third color color resist 213, and the opening radius of the third pixel opening 33 corresponding to the third color color resist 213 is smaller than the opening radius of the second pixel opening 32 corresponding to the second color color resist 212.
[0066] Specifically, the opening radius of the first pixel opening 31 can be provided as 11um, the opening radius of the second pixel opening 32 can be provided as 16.5um, and the opening radius of the third pixel opening 33 is provided as 14.7um.
[0067] Furthermore, the display panel also includes a metal trace 106 and a first photoresist 108. The metal trace 106 is disposed on the planarization layer 105 and is located in the light-shielding area corresponding to the black matrix layer 107. The black matrix layer 107 completely covers the metal trace 106.
[0068] Meanwhile, the first photoresist 108 is disposed on the black matrix layer 107, and the first photoresist 108 completely covers the color resist.
[0069] In this embodiment, the refractive index of the first photoresist 108 is greater than that of the corresponding color resist. Specifically, the refractive index of the first photoresist 108 is greater than that of the first color resist 211. Furthermore, the refractive index of the first photoresist 108 can also be greater than that of the second and third color resists. Thus, when light passes sequentially through the first color resist 211 and the first photoresist 108, the light emission effect within the first color resist 211 is effectively improved, thereby enhancing the display effect within the first display area.
[0070] Specifically, the refractive index of the first color resist 211 is set to 1.4-1.5, while the refractive index of the first photoresist 108 is set to 1.6-1.7. Preferably, the refractive index of the first color resist 211 is set to 1.4, and the refractive index of the first photoresist 108 is set to 1.65. In this embodiment, the thickness of the first photoresist 108 is set to 2.4µm-3.5µm.
[0071] Furthermore, in this embodiment, the aforementioned black matrix layer, along with corresponding color resists and a first photoresist, are also provided within the second display area 11. Since the second display area 11 corresponds to the central display area of the display panel, the color resists of different colors within the second display area 11 can all be configured with the same structure, such as being identical to the structures of the second and third color resists.
[0072] Furthermore, such as Figure 3 As shown, Figure 3 This is a schematic diagram of the film layer structure corresponding to the array substrate provided in the embodiments of this application. When fabricating the array substrate 102 provided in the embodiments of this application, the array substrate 102 includes a first substrate 201, a second substrate 202, a buffer layer 203, a first insulating layer 204, a second insulating layer 205, and a third insulating layer 206 stacked sequentially.
[0073] Furthermore, multiple thin-film transistors, such as a first thin-film transistor 21, a second thin-film transistor 22, and a third thin-film transistor 23, are disposed within the array substrate. Each thin-film transistor includes an active layer, a first gate insulated on the insulating layer, a second gate insulated on the first gate, and a source / drain metal layer insulated on the second gate. The source / drain metal layer is electrically connected to the active layer through vias. The specific film layer structure is as follows: Figure 3 As shown, the settings can be configured according to the common thin-film transistor structure, which will not be elaborated here.
[0074] In this embodiment, the thickness of the first substrate 201 can be set to 500 nm, the thickness of the second substrate 202 can be set to 500 nm, and the thickness of the buffer layer 203 can be set to 45 nm. Furthermore, the thicknesses of the first insulating layer 204, the second insulating layer 205, and the third insulating layer 206 can be set to 250 nm, 150 nm, and 250 nm respectively. Furthermore, the thickness of each of the above-mentioned films can be set according to the actual thickness of the product, and is not further limited here.
[0075] Concurrently, a passivation layer 207 is also disposed on the third insulating layer 206. This passivation layer 207 completely covers the corresponding source / drain metal layers. An anode 208 is disposed on the passivation layer 207, and the anode 208 is electrically connected to the source / drain metal layers of the thin-film transistor through corresponding vias, thereby transmitting control signals. In this embodiment, the thickness of the passivation layer 207 is set to 200 nm, and the thickness of the anode 208 is set to 140 nm.
[0076] Furthermore, such as Figure 4 As shown, Figure 4 This is a schematic diagram of the film structure of a second array substrate provided in an embodiment of this application. (Combined with...) Figure 3 In the structure, a pixel definition layer 222 is also provided on the array substrate, wherein the pixel definition layer 222 is disposed on the passivation layer 207, and a support pillar 209 is also provided on the pixel definition layer 222. At the same time, a via structure 29 is provided on the pixel definition layer 222, and the via 29 is correspondingly disposed at the anode 208.
[0077] Meanwhile, a second via 26 is also provided on one side of the second thin-film transistor 22. This second via 26 is etched with multiple layers of film, as detailed in [link to documentation]. Figure 4 The structure of the second via 26. The bonding of the array substrate can be achieved through the second via 26.
[0078] Furthermore, such as Figure 5 As shown, Figure 5A film layer structure schematic diagram corresponding to the display panel preparation process provided in the embodiment of the present application is shown in FIG. 1. In combination with the film layer structure schematic diagram shown in FIG. 1, in the embodiment of the present application, the substrate 101, the array substrate 102, the electrode layer 104, the light-emitting layer 110, and the planarization layer 105 are sequentially prepared. Figures 1-3
[0079] In the preparation of the array substrate 102, the corresponding film layer structure shown in FIG. 2 can be prepared. Details are not described herein again. After the preparation, the metal trace layer 106 and the black matrix layer 107 are prepared on the planarization layer 105. Meanwhile, the black matrix layer 107 is patterned. After the processing, the black matrix layer 107 forms a plurality of pixel openings, such as the first pixel opening 31, the second pixel opening 32, and the third pixel opening 33. Specifically, the second pixel opening 32 is arranged between the first pixel opening 31 and the third pixel opening 33. Figures 3-4
[0080] Meanwhile, in the corresponding area of the second display area 11, when the different pixel openings are etched, the above technical features are arranged, and details are not described herein again. After the etching, the third color resist 213 is arranged at the position corresponding to the third pixel opening 33. In the embodiment of the present application, the third color resist 213 is arranged in an inverted trapezoidal structure. Specifically, the color resist structure can be referred to the color resist structure introduced in the above embodiment.
[0081] Further, the boundary of the black matrix layer 107 corresponding to each pixel opening can be arranged in an inclined structure and has a certain slope. Specifically, the slope of the black matrix layer 107 corresponding to the periphery of the pixel opening can be set according to the actual product, so as to ensure that as much light as possible is transmitted from the corresponding color resist.
[0082] Meanwhile, as shown in FIG. 3, a film layer structure schematic diagram corresponding to another preparation process provided in the embodiment of the present application is shown in FIG. 3. In combination with the structure shown in FIG. 3, after the preparation of the third color resist 213 is completed, the first color resist 211 is continuously prepared. In the embodiment of the present application, when the first color resist 211 is prepared, the first color resist 211 is arranged in a convex mirror structure. Figure 6 Figure 6 Figure 5
[0083] Specifically, a half mask plate process is adopted for preparation, a half mask plate 66 is provided, and the half mask plate 66 is arranged above a position corresponding to the first pixel opening 31. Since the half mask plate 66 has different light transmittances at different positions, after the corresponding color resist is deposited in the first pixel opening 31, the first pixel opening 31 is irradiated by light. Under the action of the half mask plate 66, the etching degree of different regions is different. Finally, the convex mirror structure provided in the embodiment of the present application is etched.
[0084] Further, as shown in Figure 7 , Figure 7 is a schematic diagram of a film layer structure corresponding to the display panel provided in the embodiment of the present application. In the embodiment of the present application, the display panel includes a first display area 12 and a second display area 11. The first display area 12 is arranged at least on one side of the second display area 11.
[0085] When the corresponding film layer structure and color resist of different colors in the first display area 12 are arranged, the structure provided in the above embodiment of the present application can be arranged, which will not be described here.
[0086] When the corresponding film layer structure in the second display area 11 of the display panel is arranged, the film layer structure corresponding to the substrate 101, the array substrate 102, the electrode layer 104, the light-emitting layer 110, and the planarization layer 105 in the region is the same as the film layer structure in the first display area 12. When the corresponding color resist of different colors in the region is arranged, the second display area 11 can include at least two color resists of different colors.
[0087] In the embodiment of the present application, the first color resist 211, the second color resist 212, and the third color resist 213 are also arranged in the second display area 11. Each color resist is arranged in each pixel opening, and the structure of each color resist in the second display area 11 is the same structure, such as the second color resist and the third color resist in the first display area 12. Specifically, the cross-sectional area of each color resist can be arranged as a trapezoidal structure, which will be described in detail in Figure 7 .
[0088] In the embodiment of the present application, by arranging color resists with different structures in the corresponding display area of the edge region of the display panel, and arranging film layer structures with different refractive indexes, when the light transmits the first color resist and the first photoresist in turn, the different refractive indexes further improve the emission effect of the light, thereby effectively improving the problem of poor display effect at the edge region.
[0089] Further, the embodiment of the present application further provides a display device, which comprises the display panel provided in the embodiment of the present application. By improving the color resistance structure in the display panel and arranging the first light resistance in the display panel, the problem that the display effect of the display panel at the edge area is not ideal is effectively improved, and the comprehensive performance of the display device is improved.
[0090] In the embodiment of the present application, the display panel and the corresponding display device can be any product or component with display function, such as mobile phone, computer, electronic paper, display, notebook computer, digital photo frame, etc., and the specific type is not limited.
[0091] In summary, the display panel and the display device provided by the embodiment of the present application are described in detail above, and the principle and implementation manner of the present application are described by applying specific examples. The above embodiment is only used to help understand the technical scheme of the present application and its core idea; although the present application is disclosed as above with preferred embodiments, the above preferred embodiments are not used to limit the present application, and any modification and decoration within the spirit and scope of the present application can be made by those skilled in the art, therefore, the protection scope of the present application is based on the range defined by the claims.
Claims
1. A display panel, comprising a first pixel region disposed at an edge of the display panel and a second pixel region disposed at a side of the first pixel region, characterized in that, Comprise: a black matrix layer, the black matrix layer comprising a plurality of pixel openings arranged in a pattern; color resist, the color resist comprising a first color color resist, a second color color resist and a third color color resist, the first color color resist, the second color color resist and the third color color resist are arranged in the pixel opening in turn, the first color color resist is a green color resist, the opening radius of the pixel opening corresponding to the first color color resist is smaller than the opening radius of the pixel opening corresponding to the third color color resist, and the opening radius of the pixel opening corresponding to the third color color resist is smaller than the opening radius of the pixel opening corresponding to the second color color resist; and, a first light blocking layer, the first light blocking layer is arranged on the black matrix layer and covers the color resist; wherein, in the first pixel area, the first color color resist is arranged as a convex mirror structure away from the side of the display panel light emitting, and the light refraction index of the first light blocking layer is greater than the light refraction index of the first color color resist; The height of the first color color resist is greater than the height of the black matrix layer, and the convex mirror structure comprises a filling part and a convex part, the filling part is arranged in the corresponding pixel opening, and the convex part is arranged on the filling part; The distance from the convex part to the upper surface of the black matrix layer is in the range of 1.0um to 2.0um, or the convex part is arranged as a spherical convex, and the height of the spherical convex is arranged as 0.25um-0.5um; The structure of the second color color resist is the same as that of the third color color resist, and the second color color resist is arranged as a planar structure away from the side of the black matrix layer; In the second pixel area, the structure of each color resist is the same.
2. The display panel of claim 1, wherein, The light refraction index of the first color color resist is arranged as 1.4-1.5, and the light refraction index of the first light blocking layer is arranged as 1.6-1.
7.
3. The display panel of claim 1, wherein, The height of the second color color resist and the third color color resist is greater than the height of the black matrix layer; Wherein, the height between the upper surface of the second color color resist and the third color color resist and the upper surface of the black matrix layer is 1.5um-2.0um.
4. The display panel of claim 1, wherein, The second pixel area also comprises a plurality of color resist of different colors, each color resist is arranged in the pixel opening in the second pixel area.
5. The display panel of claim 4, wherein, In the second pixel area, the plurality of color resist of different colors are arranged as trapezoidal structures.
6. A display device, characterized by comprising: The display device comprises the display panel of any one of claims 1-5.
Citation Information
Patent Citations
A display panel and a preparation method thereof
CN109148723A
Display panel, display device and manufacturing method of display panel
CN110473984A
Display panel
CN114023796A